Shock absorber



SHOCK ABSORBE R F11-ed Des. 13, 1920 5 sheets-sheet l INVENTOR.

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' SHOCK ABSORBER FiledDec. l5, 1.920 5 sheets-sheet 2 INVENTOR.

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W. J. SCI-HUESSLEH SHOCK ABSORBER Fjed Dec.

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SHOCK application tiled December t3, 102e. Serial No. elii.

To all whom t may concern.'

Be it lrnown thatl, lliflinnmir J. Sor-rense- Lnn, a citizen of theUnited States, and av resident of limon, county of Starke, and State ofindiana, have invented a certain new and useful Shock Absorber; and l dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,in which like numerals refer to like parts.

This invention relates to` shock absorbers, and in particular to thoseofthe fluidrcompressible type. A A v rl`he chief object of thisinvention is to simplify the construction of a fluid coinpressible shockabsorber whereby the cost of manufacturing the same will be reduced andthe practical utility and durability ofthe mechanism will be amplified.

Another object of the invention is to provide means which is associatedwith the aforesaid simplified fluid eompressible shock absorber wherebythe same may be associated with and attached to the differentialhousing, and frame adjacent thereto. The

fullnature ofthe drawings will be understood from the accompanying'drawings and the following 'description and claims.

Y ln the drawings, Fig. l isa side elevational view of a portion of a"vehicle vequipped with a shock absorber embodying the invention. Fig. 2is a transverse view of the frame and wheel supporting means ofAavehicle and `the shoclr absorbing means associated therewith. Fig. 8 isan enlarged central sectional view of' the shock absorber.. Fig. is across sectional view of the shock absorbertalten on the line of lig.. 3.Fig. 5 is a longitudinal sectional view of the transmission end of amotor -vehieleillustratingI the invention directly applied theretofVFig. G is an elevational view ofthe invention taken in a plane at rightangles to that of Fig. 5.

ln the drawings 10 `indicates al channelshaped chassis memberconstituting a part 'of the vehicle frame, 11 indicates an axle or wheelsupporting member whichy is yieldinglysupported upon said frame by`means of the vehicle spring 12, which in the present instance is hingedat 13 to said frame l()f and is shackled by the shackle 1st to saidframe. The shock absorber comprises a cylinder portionl and a piston rod16. vThe cylinder l5 is secured to one of the members 10 i per end ofthc'pipe portion 15.

or 11, and preferably to the member 11. the means for s curing saidcylinder to said wheel supporting1 inember comprises a bracket platellprovided with a. soclret 1S adapted to receive the ball 19 of thecylinder. Similarly, the piston iod 1G is supported upon the othervehicle member, and preferably as illustrated the chassis frame member10, by a bracket-QO'providing a soclret portion 21 adapted to receivethe ball 22. The cylinder is preferably secured to the lower membersince the saine provides that the only opening will be at the topthereof, and, therefore, the fluid contained withinthe cylinder 15 willbe more easily retained .therein. All of the foregoing is old vin theart of shoclrabsorbers of the fluid type.

The broad construction of' the invention illustrated in detail in igs. 3and elf, and reference will be had to, said figures. IThe cylinder 15comprises a tube or pipe portion externally threaded at each end, andupon the lower end is secured a cap 23, which cap is connected with theball member 19 by the neck portion Eel- Preferably the cap, n'eclr` andball 19 is formed integral. rl`he piston' rod 1G is slidably supportedin 'a top closure member such as the cap 25, which cap has a threadedengagement with the threaded up- The cap 25 is provided with an annularflange 2G, which is externally threaded, and said cap `is also providedwith a central opening 2T, as vwell as an enlarged oi'iening 28communir-,atingy with the central opening' 27. .The piston rod 16 Iisslidably supported' in the opening 27, and adjacent said opening and inthe opening- 28 is positioned suitable packingl means 29, which packingameans is secured in said opening by means of the gland 8O seatable inthe opening 28 and provided with a pe ipheral Harige 31 bearing againstthe end of the annular flange Q6. The gland il() is also providedv witha centralopening 32 which communicates with and is axially aligned withthe opening' 2T such that the .piston rod i6 will be slidablysupportedby said gland and said cap closure member A cap 33 providedwith a registering opening- S-l to permit the rod member 1.6 to beslidable tlierethroug'h is internally threaded at 35 for engagement withthe externally threaded portion of the annular flange 26 to clamp thegland '30 upon the annular flange .26 to provide a leali-proof jointaround said piston rod 16. lilith theforegoin'g construc- 'iti ' tionedaround the piston rod support.

tion itwill be understood that ready access may be had to the interiorof the cylinder. It will also be understood that the cylinder can bevery cheaply constructed, since-the cap member 26, cap member 33, andthe pipe portion'or nipplel can be made of standaizd parts. The piston36 is detachably secured to thepistoii rod 1G and to the end thereof by`any suitable means, suc-li as the counters'unk screw or bolt 37. Thepiston 36 is provided with a plurality of openings 38 in spaced relationwith each other and pppi- O- sitioned in each end of the cylinderandbearing against the respective end closing caps` is a' plate member 39,ea'cli of which is providedwith a plurality of holes 40, said holeslikewise being in spaced relation with cach other, as shown.

The upper plate member 39 is provided with a central opening 41 suchthat the piston rod 16 is slidable therethrough. T he openings 40 ineach of the plates and the openings 38 in the 4piston 36 are adapted tobe positioned in aligned relation, as well as in spaced relation, ashereinbefore described.

Extending betweenv each pair of aligned openings 40 in the plates 39 isa rod member 42, whichA rod member is inwardly tapered from the endsthereof such that. 43 constitutes the greatest reduced portion` and saidi reduced portion 43 is positioned at the center of said rod member oreqiiidistaiit from the ends thereof. Each of the rod members 42 isreduced, at 44 to provide a bearing portion seatable in one oftheopenings`40. It will, of course, be understoodA that the openings 38 areequal in diam'eter tothe greatest diameter of the exposed portion of thetapered rod 42, which as hereinbefore described occurs adjacent thespacing and `retaining end plates 39. Thus, the fluid within thecylinder 15, upon shock and rebound, is compelled to vpass through theport openings 38 so as to permit the piston to travel within -saidcylinder. As said piston travels from the neutral position' indicated inFig. 3 to either of the shock absorbing or rebound absorbing positions,the annular opening between the opening 38 in t-lie piston 36 andthetapered rod 42 decreases with the movement of said piston from thecentral or neutral position towardsthe end of the ,rebound or shockabsorbing positions.l

rThus, the resistance ofthe shock absorber increases as the pistonapproaches the ends ofthe' cylinder, since the fluid passing from oneside ofthe piston to the other side'there-i of is increasingly retardedas the piston approaches theI end, thereby increasing .the shock and.rebound absorbing capacitycf the shock absorber.` "It will be readilyunderstood that slight shocks and rebounds will be quickly absorbed andexcessive shocksl and rebounds will also be absorbed l Laaaai/i due tothe increasing resistance thereto,

. which heretofore explained increases'with the extent of said shock orrebound.

The 'chief feature of the construction asv l7a hereinbefore describedconsists in the utilization of standard parts and the use of tapered rodmembers with the saine, it being and 6, the invention is illustrated asdirectly applied tothe axle housing. lnthis instance the chassis frame110 is provided with an end frame portionl or member 112,

and suitably secured thereto on the socketforming bracket 120 associatedwith the axle or shaft 111 is the usual Vdifferential housing 121comprised of two parts secured together by the bolts and nuts 118 and119 respectively Secured to the housing 121 is suitable bracket meanssuch as the il', an angle shaped bracket 117. The bracket means 117 ispreferably secured by means ofthe bolt and nut means 118 and 119. l"lrhebracket 117 at its mid portion is provided with a pivot supportingportion 126 in which is supported vthe pivot pin 11'3. Pivotallysupported by the pin 113 is the base 124 of the cylinder 115. Saidcylinder is provided with-'the usual means as that hereinbeforedescribed, as desired, and the' piston rod l116 is suitably supported bythe socket bracket 120. The operation of the vdevice is substantiallysimilar or identical with that hereinbefore described in detail.

The invention claimed is:

1. ln a motor vehicle, the combination with a chassis frame, and adifferential yieldingly supported by said frame, of fluid pressure shockabsorber means suitably secured at one end to the chassis frame, andbracket means secured to said differential and securing said shockabsorbing means thereto.

2.. A shock absorber for a vehicle includin a wheel supporting memberand'a frame member, comprising a fluid containing cylinder open atbotlnends, a piston in said cylinder, said piston having a plurality ofopenings in spaced relation with each other and extending therethrough,a plurality ofA inwardly tapered rods vextending longiti'idinally of andwithin said cylinder, said rods being positioned in the piston openings.the

latter being substantially equal in area to the larger portions of saidtapered rods. a

plate positioned at each end of the cylinder.

Lee-5,414-

cylinder, a second cap provided with a central opening therethroughadapted to close the other end of the cylinder and to secure b by one ofsaid vehicle members. the cylinder being supported by the other vehiclemeinn witness whereof have hereunto affixed ,my signature.

WLLL-@M J. SCHUESSLER. l

